金魚のうんこ
Meanings
1
hanger-on; clingy follower; tag-along
Idiomatic, mildly derogatory term for someone who follows another person around persistently, like goldfish feces trailing behind. Often used humorously or critically among friends.
See also: 金魚のフン
That guy is always following the senior around like a shadow, isn't he?
She's her boyfriend's clingy follower and goes everywhere with him.